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rlUpdateMesh now supports updating indices (#1009)

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This commit is contained in:
brankoku
2019-11-06 05:43:36 -05:00
committed by Ray
parent 29b9b054dd
commit bba8454034
1 changed files with 25 additions and 16 deletions
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41
src/rlgl.h
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@@ -504,7 +504,7 @@ RLAPI bool rlRenderTextureComplete(RenderTexture target); // Ver
// Vertex data management
RLAPI void rlLoadMesh(Mesh *mesh, bool dynamic); // Upload vertex data into GPU and provided VAO/VBO ids
RLAPI void rlUpdateMesh(Mesh mesh, int buffer, int numVertex); // Update vertex data on GPU (upload new data to one buffer)
RLAPI void rlUpdateMesh(Mesh mesh, int buffer, int num); // Update vertex or index data on GPU (upload new data to one buffer)
RLAPI void rlDrawMesh(Mesh mesh, Material material, Matrix transform); // Draw a 3d mesh with material and transform
RLAPI void rlUnloadMesh(Mesh mesh); // Unload mesh data from CPU and GPU
@@ -2471,7 +2471,7 @@ void rlLoadMesh(Mesh *mesh, bool dynamic)
{
glGenBuffers(1, &mesh->vboId[6]);
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, mesh->vboId[6]);
glBufferData(GL_ELEMENT_ARRAY_BUFFER, sizeof(unsigned short)*mesh->triangleCount*3, mesh->indices, GL_STATIC_DRAW);
glBufferData(GL_ELEMENT_ARRAY_BUFFER, sizeof(unsigned short)*mesh->triangleCount*3, mesh->indices, drawHint);
}
if (vaoSupported)
@@ -2509,8 +2509,8 @@ unsigned int rlLoadAttribBuffer(unsigned int vaoId, int shaderLoc, void *buffer,
return id;
}
// Update vertex data on GPU (upload new data to one buffer)
void rlUpdateMesh(Mesh mesh, int buffer, int numVertex)
// 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
@@ -2521,42 +2521,51 @@ void rlUpdateMesh(Mesh mesh, int buffer, int numVertex)
case 0: // Update vertices (vertex position)
{
glBindBuffer(GL_ARRAY_BUFFER, mesh.vboId[0]);
if (numVertex >= mesh.vertexCount) glBufferData(GL_ARRAY_BUFFER, sizeof(float)*3*numVertex, mesh.vertices, GL_DYNAMIC_DRAW);
else glBufferSubData(GL_ARRAY_BUFFER, 0, sizeof(float)*3*numVertex, mesh.vertices);
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 (numVertex >= mesh.vertexCount) glBufferData(GL_ARRAY_BUFFER, sizeof(float)*2*numVertex, mesh.texcoords, GL_DYNAMIC_DRAW);
else glBufferSubData(GL_ARRAY_BUFFER, 0, sizeof(float)*2*numVertex, mesh.texcoords);
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 (numVertex >= mesh.vertexCount) glBufferData(GL_ARRAY_BUFFER, sizeof(float)*3*numVertex, mesh.normals, GL_DYNAMIC_DRAW);
else glBufferSubData(GL_ARRAY_BUFFER, 0, sizeof(float)*3*numVertex, mesh.normals);
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 (numVertex >= mesh.vertexCount) glBufferData(GL_ARRAY_BUFFER, sizeof(float)*4*numVertex, mesh.colors, GL_DYNAMIC_DRAW);
else glBufferSubData(GL_ARRAY_BUFFER, 0, sizeof(unsigned char)*4*numVertex, mesh.colors);
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 (numVertex >= mesh.vertexCount) glBufferData(GL_ARRAY_BUFFER, sizeof(float)*4*numVertex, mesh.tangents, GL_DYNAMIC_DRAW);
else glBufferSubData(GL_ARRAY_BUFFER, 0, sizeof(float)*4*numVertex, mesh.tangents);
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 (numVertex >= mesh.vertexCount) glBufferData(GL_ARRAY_BUFFER, sizeof(float)*2*numVertex, mesh.texcoords2, GL_DYNAMIC_DRAW);
else glBufferSubData(GL_ARRAY_BUFFER, 0, sizeof(float)*2*numVertex, mesh.texcoords2);
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;
}