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Small fixes and some comments.

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This commit is contained in:
David Williams 2009-03-18 23:13:34 +00:00
parent 74292f7a62
commit 1dcec5bd3b
3 changed files with 34 additions and 23 deletions
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34
examples/OpenGL/OpenGLSupport.cpp
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@ -9,30 +9,34 @@ OpenGLColour convertMaterialIDToColour(PolyVox::uint8 materialID)
switch(materialID) switch(materialID)
{ {
case 1: case 1:
colour.red = 1.0; colour.red = 1.0f;
colour.green = 0.0; colour.green = 0.0f;
colour.blue = 0.0; colour.blue = 0.0f;
break; break;
case 2: case 2:
colour.red = 0.0; colour.red = 0.0f;
colour.green = 1.0; colour.green = 1.0f;
colour.blue = 0.0; colour.blue = 0.0f;
break; break;
case 3: case 3:
colour.red = 0.0; colour.red = 0.0f;
colour.green = 0.0; colour.green = 0.0f;
colour.blue = 1.0; colour.blue = 1.0f;
break; break;
case 4: case 4:
colour.red = 1.0; colour.red = 1.0f;
colour.green = 1.0; colour.green = 1.0f;
colour.blue = 0.0; colour.blue = 0.0f;
break; break;
case 5: case 5:
colour.red = 1.0; colour.red = 1.0f;
colour.green = 0.0; colour.green = 0.0f;
colour.blue = 1.0; colour.blue = 1.0f;
break; break;
default:
colour.red = 1.0f;
colour.green = 1.0f;
colour.blue = 1.0f;
} }
return colour; return colour;

21
examples/OpenGL/OpenGLVertexBufferObjectSupport.cpp
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@ -6,20 +6,27 @@
using namespace PolyVox; using namespace PolyVox;
using namespace std; using namespace std;
OpenGLSurfacePatch BuildOpenGLSurfacePatch(IndexedSurfacePatch& isp) OpenGLSurfacePatch BuildOpenGLSurfacePatch(const IndexedSurfacePatch& isp)
{ {
//Represents our filled in OpenGL vertex and index buffer objects.
OpenGLSurfacePatch result; OpenGLSurfacePatch result;
//Convienient access to the vertices and indices
const vector<SurfaceVertex>& vecVertices = isp.getVertices(); const vector<SurfaceVertex>& vecVertices = isp.getVertices();
const vector<uint32>& vecIndices = isp.getIndices(); const vector<uint32>& vecIndices = isp.getIndices();
glGenBuffers(1, &result.indexBuffer); //If we have any indices...
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, result.indexBuffer); if(!vecIndices.empty())
int s = vecIndices.size() * sizeof(GLint);
if(s != 0)
{ {
GLvoid* blah = (GLvoid*)(&(vecIndices[0])); //Create an OpenGL index buffer
glBufferData(GL_ELEMENT_ARRAY_BUFFER, s, blah, GL_STATIC_DRAW); glGenBuffers(1, &result.indexBuffer);
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, result.indexBuffer);
//Get a pointer to the first index
GLvoid* pIndices = (GLvoid*)(&(vecIndices[0]));
//Fill the OpenGL index buffer with our data.
glBufferData(GL_ELEMENT_ARRAY_BUFFER, vecIndices.size() * sizeof(uint32), pIndices, GL_STATIC_DRAW);
} }
result.noOfIndices = vecIndices.size(); result.noOfIndices = vecIndices.size();

2
examples/OpenGL/OpenGLVertexBufferObjectSupport.h
View File

@ -12,7 +12,7 @@ struct OpenGLSurfacePatch
GLuint vertexBuffer; GLuint vertexBuffer;
}; };
OpenGLSurfacePatch BuildOpenGLSurfacePatch(PolyVox::IndexedSurfacePatch& isp); OpenGLSurfacePatch BuildOpenGLSurfacePatch(const PolyVox::IndexedSurfacePatch& isp);
void renderRegionVertexBufferObject(const OpenGLSurfacePatch& openGLSurfacePatch); void renderRegionVertexBufferObject(const OpenGLSurfacePatch& openGLSurfacePatch);
#endif //__OpenGLExample_OpenGLVertexBufferObjectSupport_H__ #endif //__OpenGLExample_OpenGLVertexBufferObjectSupport_H__