Method

CoglProgramset_uniform_matrix

deprecated: 1.16

Declaration [src]

void
cogl_program_set_uniform_matrix (
  CoglProgram* program,
  int uniform_location,
  int dimensions,
  int count,
  gboolean transpose,
  const float* value
)

Description [src]

Changes the value of a matrix uniform, or uniform array in the given linked program.

Deprecated since: 1.16

Use CoglSnippet api instead.

Parameters

uniform_location

Type: int

The uniform location retrieved from cogl_program_get_uniform_location().

dimensions

Type: int

The dimensions of the matrix. So for for example pass 2 for a 2x2 matrix or 3 for 3x3.

count

Type: int

For uniform arrays this is the array length otherwise just pass 1.

transpose

Type: gboolean

Whether to transpose the matrix when setting the uniform.

value

Type: An array of float

The new value of the uniform.

The length of the array is specified in the count argument.

The data is owned by the caller of the method.