obj-vertex-format

Vocabulary

game.models.obj.private

Class description

Vertex format used for rendering OBJ geometry.

Definition

IN: game.models.obj.private

SINGLETON: obj-vertex-format

Methods

USING: alien.c-types alien.data alien.strings byte-arrays
combinators game.models.obj.private gpu.shaders
gpu.shaders.private io.encodings.ascii kernel opengl.gl ;

M: obj-vertex-format (verify-feedback-format)
    drop [
        [
            0 9 dup [ f 0 int <ref> 0 int <ref> ] dip
            <byte-array> [ glGetTransformFeedbackVarying ] 3keep
            ascii alien>string
            T{ vertex-attribute { name "POSITION" } { dim 3 } }
            assert-feedback-attribute
        ] [
            1 9 dup [ f 0 int <ref> 0 int <ref> ] dip
            <byte-array> [ glGetTransformFeedbackVarying ] 3keep
            ascii alien>string
            T{ vertex-attribute { name "TEXCOORD" } { dim 2 } }
            assert-feedback-attribute
        ] [
            2 7 dup [ f 0 int <ref> 0 int <ref> ] dip
            <byte-array> [ glGetTransformFeedbackVarying ] 3keep
            ascii alien>string
            T{ vertex-attribute { name "NORMAL" } { dim 3 } }
            assert-feedback-attribute
        ]
    ] cleave ;


USING: combinators game.models.obj.private gpu.buffers
gpu.shaders.private kernel ;

M: obj-vertex-format bind-vertex-format
    drop vertex-buffer [
        {
            [
                "POSITION" 3 5126 0 32 0
                (bind-float-vertex-attribute)
            ]
            [
                "TEXCOORD" 2 5126 0 32 12
                (bind-float-vertex-attribute)
            ]
            [
                "NORMAL" 3 5126 0 32 20
                (bind-float-vertex-attribute)
            ]
        } 2cleave
    ] with-buffer-ptr ;


USING: alien.syntax game.models.obj.private gpu.shaders.private
kernel opengl.gl
specialized-arrays.instances.alien.c-types.void* ;

M: obj-vertex-format link-feedback-format
    drop 3 void*-array{
        ALIEN: 6000014bc710
        ALIEN: 6000014bc720
        ALIEN: 6000014bc730
    } GL_INTERLEAVED_ATTRIBS glTransformFeedbackVaryings ;


USING: game.models.obj.private gpu.shaders kernel ;

M: obj-vertex-format vertex-format-size drop 32 ;