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[rlgl] Update function rlUpdateMeshAt

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brankoku 2019-11-09 23:58:13 -05:00 committed by GitHub
parent 40d70bf1a6
commit c9541abc4c
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GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 18 additions and 74 deletions
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92
src/rlgl.h
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@ -2513,72 +2513,7 @@ unsigned int rlLoadAttribBuffer(unsigned int vaoId, int shaderLoc, void *buffer,
// Update vertex or index data on GPU (upload new data to one buffer)
void rlUpdateMesh(Mesh mesh, int buffer, int num)
{
#if defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES2)
// Activate mesh VAO
if (vaoSupported) glBindVertexArray(mesh.vaoId);
switch (buffer)
{
case 0: // Update vertices (vertex position)
{
glBindBuffer(GL_ARRAY_BUFFER, mesh.vboId[0]);
if (num >= mesh.vertexCount) glBufferData(GL_ARRAY_BUFFER, sizeof(float)*3*num, mesh.vertices, GL_DYNAMIC_DRAW);
else glBufferSubData(GL_ARRAY_BUFFER, 0, sizeof(float)*3*num, mesh.vertices);
} break;
case 1: // Update texcoords (vertex texture coordinates)
{
glBindBuffer(GL_ARRAY_BUFFER, mesh.vboId[1]);
if (num >= mesh.vertexCount) glBufferData(GL_ARRAY_BUFFER, sizeof(float)*2*num, mesh.texcoords, GL_DYNAMIC_DRAW);
else glBufferSubData(GL_ARRAY_BUFFER, 0, sizeof(float)*2*num, mesh.texcoords);
} break;
case 2: // Update normals (vertex normals)
{
glBindBuffer(GL_ARRAY_BUFFER, mesh.vboId[2]);
if (num >= mesh.vertexCount) glBufferData(GL_ARRAY_BUFFER, sizeof(float)*3*num, mesh.normals, GL_DYNAMIC_DRAW);
else glBufferSubData(GL_ARRAY_BUFFER, 0, sizeof(float)*3*num, mesh.normals);
} break;
case 3: // Update colors (vertex colors)
{
glBindBuffer(GL_ARRAY_BUFFER, mesh.vboId[3]);
if (num >= mesh.vertexCount) glBufferData(GL_ARRAY_BUFFER, sizeof(float)*4*num, mesh.colors, GL_DYNAMIC_DRAW);
else glBufferSubData(GL_ARRAY_BUFFER, 0, sizeof(unsigned char)*4*num, mesh.colors);
} break;
case 4: // Update tangents (vertex tangents)
{
glBindBuffer(GL_ARRAY_BUFFER, mesh.vboId[4]);
if (num >= mesh.vertexCount) glBufferData(GL_ARRAY_BUFFER, sizeof(float)*4*num, mesh.tangents, GL_DYNAMIC_DRAW);
else glBufferSubData(GL_ARRAY_BUFFER, 0, sizeof(float)*4*num, mesh.tangents);
} break;
case 5: // Update texcoords2 (vertex second texture coordinates)
{
glBindBuffer(GL_ARRAY_BUFFER, mesh.vboId[5]);
if (num >= mesh.vertexCount) glBufferData(GL_ARRAY_BUFFER, sizeof(float)*2*num, mesh.texcoords2, GL_DYNAMIC_DRAW);
else glBufferSubData(GL_ARRAY_BUFFER, 0, sizeof(float)*2*num, mesh.texcoords2);
} break;
case 6: // Update indices (triangle index buffer)
{
unsigned short *indices = mesh.indices;
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, mesh.vboId[6]);
if (num >= mesh.triangleCount*3) // 3 indices per triangle
glBufferData(GL_ELEMENT_ARRAY_BUFFER, sizeof(*indices)*num, indices, GL_DYNAMIC_DRAW);
else
glBufferSubData(GL_ELEMENT_ARRAY_BUFFER, 0, sizeof(*indices)*num, indices);
} break;
default: break;
}
// Unbind the current VAO
if (vaoSupported) glBindVertexArray(0);
// Another option would be using buffer mapping...
//mesh.vertices = glMapBuffer(GL_ARRAY_BUFFER, GL_READ_WRITE);
// Now we can modify vertices
//glUnmapBuffer(GL_ARRAY_BUFFER);
#endif
rlUpdateMeshAt(mesh, buffer, num, 0);
}
// Update vertex or index data on GPU, at index
@ -2595,51 +2530,60 @@ void rlUpdateMeshAt(Mesh mesh, int buffer, int num, int index)
case 0: // Update vertices (vertex position)
{
glBindBuffer(GL_ARRAY_BUFFER, mesh.vboId[0]);
if (index + num >= mesh.vertexCount) break;
if (index == 0 && num >= mesh.vertexCount) glBufferData(GL_ARRAY_BUFFER, sizeof(float)*3*num, mesh.vertices, GL_DYNAMIC_DRAW);
else if (index + num >= mesh.vertexCount) break;
else glBufferSubData(GL_ARRAY_BUFFER, sizeof(float)*3*index, sizeof(float)*3*num, mesh.vertices);
} break;
case 1: // Update texcoords (vertex texture coordinates)
{
glBindBuffer(GL_ARRAY_BUFFER, mesh.vboId[1]);
if (index + num >= mesh.vertexCount) break;
if (index == 0 && num >= mesh.vertexCount) glBufferData(GL_ARRAY_BUFFER, sizeof(float)*2*num, mesh.texcoords, GL_DYNAMIC_DRAW);
else if (index + num >= mesh.vertexCount) break;
else glBufferSubData(GL_ARRAY_BUFFER, sizeof(float)*2*index, sizeof(float)*2*num, mesh.texcoords);
} break;
case 2: // Update normals (vertex normals)
{
glBindBuffer(GL_ARRAY_BUFFER, mesh.vboId[2]);
if (index + num >= mesh.vertexCount) break;
if (index == 0 && num >= mesh.vertexCount) glBufferData(GL_ARRAY_BUFFER, sizeof(float)*3*num, mesh.normals, GL_DYNAMIC_DRAW);
else if (index + num >= mesh.vertexCount) break;
else glBufferSubData(GL_ARRAY_BUFFER, sizeof(float)*3*index, sizeof(float)*3*num, mesh.normals);
} break;
case 3: // Update colors (vertex colors)
{
glBindBuffer(GL_ARRAY_BUFFER, mesh.vboId[3]);
if (index + num >= mesh.vertexCount) break;
if (index == 0 && num >= mesh.vertexCount) glBufferData(GL_ARRAY_BUFFER, sizeof(float)*4*num, mesh.colors, GL_DYNAMIC_DRAW);
else if (index + num >= mesh.vertexCount) break;
else glBufferSubData(GL_ARRAY_BUFFER, sizeof(unsigned char)*4*index, sizeof(unsigned char)*4*num, mesh.colors);
} break;
case 4: // Update tangents (vertex tangents)
{
glBindBuffer(GL_ARRAY_BUFFER, mesh.vboId[4]);
if (index + num >= mesh.vertexCount) break;
if (index == 0 && num >= mesh.vertexCount) glBufferData(GL_ARRAY_BUFFER, sizeof(float)*4*num, mesh.tangents, GL_DYNAMIC_DRAW);
else if (index + num >= mesh.vertexCount) break;
else glBufferSubData(GL_ARRAY_BUFFER, sizeof(float)*4*index, sizeof(float)*4*num, mesh.tangents);
} break;
case 5: // Update texcoords2 (vertex second texture coordinates)
{
glBindBuffer(GL_ARRAY_BUFFER, mesh.vboId[5]);
if (index + num >= mesh.vertexCount) break;
if (index == 0 && num >= mesh.vertexCount) glBufferData(GL_ARRAY_BUFFER, sizeof(float)*2*num, mesh.texcoords2, GL_DYNAMIC_DRAW);
else if (index + num >= mesh.vertexCount) break;
else glBufferSubData(GL_ARRAY_BUFFER, sizeof(float)*2*index, sizeof(float)*2*num, mesh.texcoords2);
} break;
case 6: // Update indices (triangle index buffer)
{
// the * 3 is because each triangle has 3 indices
unsigned short *indices = mesh.indices;
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, mesh.vboId[6]);
if (index + num >= mesh.triangleCount*3) // 3 indices per triangle
if (index == 0 && num >= mesh.triangleCount)
glBufferData(GL_ELEMENT_ARRAY_BUFFER, sizeof(*indices)*num*3, indices, GL_DYNAMIC_DRAW);
else if (index + num >= mesh.triangleCount)
break;
else
glBufferSubData(GL_ELEMENT_ARRAY_BUFFER, sizeof(*indices)*index, sizeof(*indices)*num, indices);
glBufferSubData(GL_ELEMENT_ARRAY_BUFFER, sizeof(*indices)*index*3, sizeof(*indices)*num*3, indices);
} break;
default: break;
}