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BGE VideoTexture: add depth buffer access to ImageViewport and ImageRender.

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2 new attributes to ImageViewport and ImageRender object:
depth: set to True to retrieve the depth buffer as an array of float
       (not suitable for texture source).
zbuff: set to True to retrieve the depth buffer as a grey scale pixel array
       (suitable for texture source).

A new mode 'F' is added to VideoTexture.imageToArray() to allow returning the image
buffer as a one dimensional array of float. This mode should only be used to retrieve
the depth buffer of ImageViewport and ImageRender objects.

Example:

viewport = VideoTexture.ImageViewport()
viewport.depth = True
depth = VideoTexture.imageToArray(viewport,'F')
# show depth of bottom left pixel
# 1.0 = infinite, 0.0 = on near clip plane.
print(depth[0])
This commit is contained in:
Benoit Bolsee
2012-10-20 22:28:44 +00:00
parent 7deb8d8a26
commit 4213eca5fc
7 changed files with 204 additions and 5 deletions
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4
source/gameengine/VideoTexture/ImageRender.cpp
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@@ -385,6 +385,8 @@ static PyGetSetDef imageRenderGetSets[] =
{(char*)"size", (getter)Image_getSize, NULL, (char*)"image size", NULL},
{(char*)"scale", (getter)Image_getScale, (setter)Image_setScale, (char*)"fast scale of image (near neighbor)", NULL},
{(char*)"flip", (getter)Image_getFlip, (setter)Image_setFlip, (char*)"flip image vertically", NULL},
{(char*)"zbuff", (getter)Image_getZbuff, (setter)Image_setZbuff, (char*)"use depth buffer as texture", NULL},
{(char*)"depth", (getter)Image_getDepth, (setter)Image_setDepth, (char*)"get depth information from z-buffer using unsigned int precision", NULL},
{(char*)"filter", (getter)Image_getFilter, (setter)Image_setFilter, (char*)"pixel filter", NULL},
{NULL}
};
@@ -547,6 +549,8 @@ static PyGetSetDef imageMirrorGetSets[] =
{(char*)"size", (getter)Image_getSize, NULL, (char*)"image size", NULL},
{(char*)"scale", (getter)Image_getScale, (setter)Image_setScale, (char*)"fast scale of image (near neighbor)", NULL},
{(char*)"flip", (getter)Image_getFlip, (setter)Image_setFlip, (char*)"flip image vertically", NULL},
{(char*)"zbuff", (getter)Image_getZbuff, (setter)Image_setZbuff, (char*)"use depth buffer as texture", NULL},
{(char*)"depth", (getter)Image_getDepth, (setter)Image_setDepth, (char*)"get depth information from z-buffer using unsigned int precision", NULL},
{(char*)"filter", (getter)Image_getFilter, (setter)Image_setFilter, (char*)"pixel filter", NULL},
{NULL}
};