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Fix for size of VBO index type when drawing multires in sculpt mode.

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The VBO index type can be either ushort or uint depending on the grid
size. The comparison was checking how many quads are in the array, but
this was incorrect; the size of the index elements should depend on
the maximum value they reference, i.e. the maximum coord/normal
element.
This commit is contained in:
Nicholas Bishop
2012-03-16 23:21:40 +00:00
parent fa17b0a911
commit 52418868eb
1 changed files with 2 additions and 2 deletions
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4
source/blender/gpu/intern/gpu_buffers.c
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@@ -1572,7 +1572,7 @@ static GLuint gpu_get_grid_buffer(int gridsize, GLenum *index_type, unsigned *to
glBindBufferARB(GL_ELEMENT_ARRAY_BUFFER_ARB, buffer);
if(*totquad < USHRT_MAX) {
if(gridsize * gridsize < USHRT_MAX) {
*index_type = GL_UNSIGNED_SHORT;
FILL_QUAD_BUFFER(unsigned short, *totquad, buffer);
}
@@ -1617,7 +1617,7 @@ GPU_Buffers *GPU_build_grid_buffers(int *grid_indices, int totgrid,
glBindBufferARB(GL_ELEMENT_ARRAY_BUFFER_ARB, buffers->index_buf);
if(totquad < USHRT_MAX) {
if(totgrid * gridsize * gridsize < USHRT_MAX) {
buffers->index_type = GL_UNSIGNED_SHORT;
FILL_QUAD_BUFFER(unsigned short, totquad, buffers->index_buf);
}