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source: downloads/ogre_src_v1-9-0/OgreMain/include/OgreCompositionPass.h @ 153

Last change on this file since 153 was 148, checked in by patricwi, 6 years ago

Added new dependencies for ogre1.9 and cegui0.8
File size: 12.1 KB
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1/*
2-----------------------------------------------------------------------------
3This source file is part of OGRE
4    (Object-oriented Graphics Rendering Engine)
5For the latest info, see http://www.ogre3d.org/
6
7Copyright (c) 2000-2013 Torus Knot Software Ltd
8
9Permission is hereby granted, free of charge, to any person obtaining a copy
10of this software and associated documentation files (the "Software"), to deal
11in the Software without restriction, including without limitation the rights
12to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
13copies of the Software, and to permit persons to whom the Software is
14furnished to do so, subject to the following conditions:
15
16The above copyright notice and this permission notice shall be included in
17all copies or substantial portions of the Software.
18
19THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
20IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
21FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
22AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
23LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
24OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
25THE SOFTWARE.
26-----------------------------------------------------------------------------
27*/
28#ifndef __CompositionPass_H__
29#define __CompositionPass_H__
30
31#include "OgrePrerequisites.h"
32#include "OgreMaterial.h"
33#include "OgreRenderSystem.h"
34#include "OgreRenderQueue.h"
35#include "OgreHeaderPrefix.h"
36
37namespace Ogre {
38        /** \addtogroup Core
39        *  @{
40        */
41        /** \addtogroup Effects
42        *  @{
43        */
44        /** Object representing one pass or operation in a composition sequence. This provides a
45                method to conveniently interleave RenderSystem commands between Render Queues.
46         */
47        class _OgreExport CompositionPass : public CompositorInstAlloc
48    {
49    public:
50        CompositionPass(CompositionTargetPass *parent);
51        ~CompositionPass();
52       
53        /** Enumeration that enumerates the various composition pass types.
54        */
55        enum PassType
56        {
57            PT_CLEAR,           /// Clear target to one colour
58                        PT_STENCIL,                     /// Set stencil operation
59            PT_RENDERSCENE,     /// Render the scene or part of it
60            PT_RENDERQUAD,      /// Render a full screen quad
61                        PT_RENDERCUSTOM         /// Render a custom sequence
62        };
63       
64        /** Set the type of composition pass */
65        void setType(PassType type);
66        /** Get the type of composition pass */
67        PassType getType() const;
68       
69                /** Set an identifier for this pass. This identifier can be used to
70                        "listen in" on this pass with an CompositorInstance::Listener.
71                */
72                void setIdentifier(uint32 id);
73                /** Get the identifier for this pass */
74                uint32 getIdentifier() const;
75
76        /** Set the material used by this pass
77                        @note applies when PassType is RENDERQUAD
78                */
79        void setMaterial(const MaterialPtr& mat);
80        /** Set the material used by this pass
81                        @note applies when PassType is RENDERQUAD
82                */
83        void setMaterialName(const String &name);
84        /** Get the material used by this pass
85                        @note applies when PassType is RENDERQUAD
86                */
87        const MaterialPtr& getMaterial() const;
88                /** Set the first render queue to be rendered in this pass (inclusive)
89                        @note applies when PassType is RENDERSCENE
90                */
91        void setFirstRenderQueue(uint8 id);
92                /** Get the first render queue to be rendered in this pass (inclusive)
93                        @note applies when PassType is RENDERSCENE
94                */
95                uint8 getFirstRenderQueue() const;
96                /** Set the last render queue to be rendered in this pass (inclusive)
97                        @note applies when PassType is RENDERSCENE
98                */
99        void setLastRenderQueue(uint8 id);
100                /** Get the last render queue to be rendered in this pass (inclusive)
101                        @note applies when PassType is RENDERSCENE
102                */
103                uint8 getLastRenderQueue() const;
104
105                /** Set the material scheme used by this pass.
106                @remarks
107                        Only applicable to passes that render the scene.
108                        @see Technique::setScheme.
109                */
110                void setMaterialScheme(const String& schemeName);
111                /** Get the material scheme used by this pass.
112                @remarks
113                        Only applicable to passes that render the scene.
114                        @see Technique::setScheme.
115                */
116                const String& getMaterialScheme(void) const;
117
118                /** Would be nice to have for RENDERSCENE:
119                        flags to:
120                                exclude transparents
121                                override material (at least -- color)
122                */
123
124        /** Set the viewport clear buffers  (defaults to FBT_COLOUR|FBT_DEPTH)
125            @param val is a combination of FBT_COLOUR, FBT_DEPTH, FBT_STENCIL.
126                        @note applies when PassType is CLEAR
127        */
128        void setClearBuffers(uint32 val);
129        /** Get the viewport clear buffers.
130                        @note applies when PassType is CLEAR
131        */
132        uint32 getClearBuffers() const;
133        /** Set the viewport clear colour (defaults to 0,0,0,0)
134                        @note applies when PassType is CLEAR
135                 */
136        void setClearColour(ColourValue val);
137        /** Get the viewport clear colour (defaults to 0,0,0,0)
138                        @note applies when PassType is CLEAR
139                 */
140        const ColourValue &getClearColour() const;
141        /** Set the viewport clear depth (defaults to 1.0)
142                        @note applies when PassType is CLEAR
143                */
144        void setClearDepth(Real depth);
145        /** Get the viewport clear depth (defaults to 1.0)
146                        @note applies when PassType is CLEAR
147                */
148        Real getClearDepth() const;
149                /** Set the viewport clear stencil value (defaults to 0)
150                        @note applies when PassType is CLEAR
151                */
152        void setClearStencil(uint32 value);
153        /** Get the viewport clear stencil value (defaults to 0)
154                        @note applies when PassType is CLEAR
155                */
156        uint32 getClearStencil() const;
157
158                /** Set stencil check on or off.
159                        @note applies when PassType is STENCIL
160                */
161                void setStencilCheck(bool value);
162                /** Get stencil check enable.
163                        @note applies when PassType is STENCIL
164                */
165                bool getStencilCheck() const;
166                /** Set stencil compare function.
167                        @note applies when PassType is STENCIL
168                */
169                void setStencilFunc(CompareFunction value); 
170                /** Get stencil compare function.
171                        @note applies when PassType is STENCIL
172                */
173                CompareFunction getStencilFunc() const; 
174                /** Set stencil reference value.
175                        @note applies when PassType is STENCIL
176                */
177                void setStencilRefValue(uint32 value);
178                /** Get stencil reference value.
179                        @note applies when PassType is STENCIL
180                */
181                uint32 getStencilRefValue() const;
182                /** Set stencil mask.
183                        @note applies when PassType is STENCIL
184                */
185                void setStencilMask(uint32 value);
186                /** Get stencil mask.
187                        @note applies when PassType is STENCIL
188                */
189                uint32 getStencilMask() const;
190                /** Set stencil fail operation.
191                        @note applies when PassType is STENCIL
192                */
193                void setStencilFailOp(StencilOperation value);
194                /** Get stencil fail operation.
195                        @note applies when PassType is STENCIL
196                */
197                StencilOperation getStencilFailOp() const;
198                /** Set stencil depth fail operation.
199                        @note applies when PassType is STENCIL
200                */
201                void setStencilDepthFailOp(StencilOperation value);
202                /** Get stencil depth fail operation.
203                        @note applies when PassType is STENCIL
204                */
205                StencilOperation getStencilDepthFailOp() const;
206                /** Set stencil pass operation.
207                        @note applies when PassType is STENCIL
208                */
209                void setStencilPassOp(StencilOperation value);
210                /** Get stencil pass operation.
211                        @note applies when PassType is STENCIL
212                */
213                StencilOperation getStencilPassOp() const;
214                /** Set two sided stencil operation.
215                        @note applies when PassType is STENCIL
216                */
217                void setStencilTwoSidedOperation(bool value);
218                /** Get two sided stencil operation.
219                        @note applies when PassType is STENCIL
220                */
221                bool getStencilTwoSidedOperation() const;
222
223                /// Inputs (for material used for rendering the quad)
224                struct InputTex
225                {
226                        /// Name (local) of the input texture (empty == no input)
227                        String name;
228                        /// MRT surface index if applicable
229                        size_t mrtIndex;
230                        InputTex() : name(StringUtil::BLANK), mrtIndex(0) {}
231                        InputTex(const String& _name, size_t _mrtIndex = 0)
232                                : name(_name), mrtIndex(_mrtIndex) {}
233                };
234
235        /** Set an input local texture. An empty string clears the input.
236            @param id    Input to set. Must be in 0..OGRE_MAX_TEXTURE_LAYERS-1
237            @param input Which texture to bind to this input. An empty string clears the input.
238                        @param mrtIndex Which surface of an MRT to retrieve
239                        @note applies when PassType is RENDERQUAD
240        */
241        void setInput(size_t id, const String &input=StringUtil::BLANK, size_t mrtIndex=0);
242       
243        /** Get the value of an input.
244            @param id    Input to get. Must be in 0..OGRE_MAX_TEXTURE_LAYERS-1.
245                        @note applies when PassType is RENDERQUAD
246        */
247        const InputTex &getInput(size_t id) const;
248       
249        /** Get the number of inputs used.
250                        @note applies when PassType is RENDERQUAD
251        */
252        size_t getNumInputs() const;
253       
254        /** Clear all inputs.
255                        @note applies when PassType is RENDERQUAD
256        */
257        void clearAllInputs();
258       
259        /** Get parent object
260                        @note applies when PassType is RENDERQUAD
261                */
262        CompositionTargetPass *getParent();
263
264        /** Determine if this target pass is supported on the current rendering device.
265         */
266        bool _isSupported(void);
267
268        /** Set quad normalised positions [-1;1]x[-1;1]
269            @note applies when PassType is RENDERQUAD
270         */
271        void setQuadCorners(Real left,Real top,Real right,Real bottom);
272
273        /** Get quad normalised positions [-1;1]x[-1;1]
274            @note applies when PassType is RENDERQUAD
275         */
276        bool getQuadCorners(Real & left,Real & top,Real & right,Real & bottom) const;
277           
278                /** Sets the use of camera frustum far corners provided in the quad's normals
279                        @note applies when PassType is RENDERQUAD
280                */
281                void setQuadFarCorners(bool farCorners, bool farCornersViewSpace);
282
283                /** Returns true if camera frustum far corners are provided in the quad.
284                        @note applies when PassType is RENDERQUAD
285                */
286                bool getQuadFarCorners() const;
287
288                /** Returns true if the far corners provided in the quad are in view space
289                        @note applies when PassType is RENDERQUAD
290                */
291                bool getQuadFarCornersViewSpace() const;
292
293                /** Set the type name of this custom composition pass.
294                        @note applies when PassType is RENDERCUSTOM
295                        @see CompositorManager::registerCustomCompositionPass
296                */
297                void setCustomType(const String& customType);
298
299                /** Get the type name of this custom composition pass.
300                        @note applies when PassType is RENDERCUSTOM
301                        @see CompositorManager::registerCustomCompositionPass
302                */
303                const String& getCustomType() const;
304
305    private:
306        /// Parent technique
307        CompositionTargetPass *mParent;
308        /// Type of composition pass
309        PassType mType;
310                /// Identifier for this pass
311                uint32 mIdentifier;
312        /// Material used for rendering
313        MaterialPtr mMaterial;
314        /// [first,last] render queue to render this pass (in case of PT_RENDERSCENE)
315                uint8 mFirstRenderQueue;
316                uint8 mLastRenderQueue;
317                /// Material scheme name
318                String mMaterialScheme;
319        /// Clear buffers (in case of PT_CLEAR)
320        uint32 mClearBuffers;
321        /// Clear colour (in case of PT_CLEAR)
322        ColourValue mClearColour;
323                /// Clear depth (in case of PT_CLEAR)
324                Real mClearDepth;
325                /// Clear stencil value (in case of PT_CLEAR)
326                uint32 mClearStencil;
327        /** Inputs (for material used for rendering the quad).
328            An empty string signifies that no input is used */
329        InputTex mInputs[OGRE_MAX_TEXTURE_LAYERS];
330                /// Stencil operation parameters
331                bool mStencilCheck;
332                CompareFunction mStencilFunc; 
333                uint32 mStencilRefValue;
334                uint32 mStencilMask;
335                StencilOperation mStencilFailOp;
336                StencilOperation mStencilDepthFailOp;
337                StencilOperation mStencilPassOp;
338                bool mStencilTwoSidedOperation;
339
340        /// True if quad should not cover whole screen
341        bool mQuadCornerModified;
342        /// quad positions in normalised coordinates [-1;1]x[-1;1] (in case of PT_RENDERQUAD)
343        Real mQuadLeft;
344        Real mQuadTop;
345        Real mQuadRight;
346        Real mQuadBottom;
347
348                bool mQuadFarCorners, mQuadFarCornersViewSpace;
349                /// The type name of the custom composition pass.
350                String mCustomType;
351    };
352        /** @} */
353        /** @} */
354
355}
356
357#include "OgreHeaderSuffix.h"
358
359#endif
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